GASpilotStood at a boiler you've never met?
Breakdown AI has.
Give it the make, model and fault code. In seconds you get the most likely causes ranked, the diagnostic checks in the fastest order with expected readings, and the parts you'll probably need. No other gas engineer app has anything like it.
Included free in the trial · then part of the Premium plan
Fault code: F75
Symptoms: fires up then locks out
Most likely causes
- Water pressure sensor (~50%) — a known weak point on this model
- Pump not producing the pressure rise (~25%)
- Air in the system / low pressure (~15%)
Check first
- d.info live pressure vs gauge — big discrepancy = sensor
- Feel for the pump kick at start; check it's not seized
Parts likely needed
- Water pressure sensor — confirm part no. against your serial
Built for how engineers actually work
This isn't a chatbot bolted onto an app. It's a diagnosis assistant that knows it's talking to a Gas Safe registered engineer.
Model-specific, not generic
Answers are ranked for that boiler and that fault code, using known pattern failures — and it tells you when it's generalising, instead of bluffing.
Readings, not riddles
Checks come with the expected values — resistances, pressures, voltages — in the order that rules causes out fastest. Uncertain values are flagged "confirm against the MI".
It works the fault with you
Report what you measure and it narrows the diagnosis to the next check or the fix — like having a second engineer on the phone who's seen this fault a hundred times.
Engineer to engineer
No "call a professional" — you are the professional. No safety lectures, just the safety-critical flags that matter, put first when they apply.
Fewer second visits
Turning up with the right part beats ordering it after a guess. Ranked causes and a parts list mean fewer wasted trips to the merchant.
Made for the job site
Tight, scannable answers designed to be read on a phone in front of the boiler — not an essay to scroll through with cold hands.
The honest bit
Breakdown AI is an assistant, not an oracle. It's drawing on broad knowledge of manufacturer fault codes and failure patterns, and it's right impressively often — but on obscure models it can be wrong, which is why it gives you ranked likelihoods and checks to confirm, not commandments, and flags any value it isn't sure of.
Your judgement, the manufacturer's instructions and GIUSP always come first. Final classification decisions are yours — the same as they've always been. Think of it as the sharpest second opinion you've ever had in your pocket, with fair-use limits generous enough that you'll never think about them (25 diagnoses a day).
Try it on your next breakdown
Free for 60 days with everything else in GASpilot. No card needed — just the next awkward fault.
Start your free trialTerms of Service · Privacy Policy
GASpilot — AI for Gas Safe Registered Engineers · queries@gaspilot.uk